From: Francois Romieu <romieu@fr.zoreil.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>,
netdev@vger.kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: 3.14-mw regression: rtl8169 WARNING: DMA-API: exceeded 7 overlapping mappings of pfn 55ebe
Date: Mon, 27 Jan 2014 01:03:05 +0100 [thread overview]
Message-ID: <20140127000305.GA14236@electric-eye.fr.zoreil.com> (raw)
In-Reply-To: <1859471893.20140126115521@eikelenboom.it>
Sander Eikelenboom <linux@eikelenboom.it> :
[...]
> I have got a regression with a 3.14-mw kernel (last commit is 4ba9920e5e9c0e16b5ed24292d45322907bb9035):
> It looks like it's related to the rtl8169 ...
>
> --
> Sander
>
> Jan 26 11:36:26 serveerstertje kernel: [ 89.105537] ------------[ cut here ]------------
> Jan 26 11:36:26 serveerstertje kernel: [ 89.116779] WARNING: CPU: 0 PID: 0 at lib/dma-debug.c:491 add_dma_entry+0x103/0x130()
> Jan 26 11:36:26 serveerstertje kernel: [ 89.128148] DMA-API: exceeded 7 overlapping mappings of pfn 55ebe
> Jan 26 11:36:26 serveerstertje kernel: [ 89.139397] Modules linked in:
> Jan 26 11:36:26 serveerstertje kernel: [ 89.150535] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.13.0-20140125-mw-pcireset+ #1
> Jan 26 11:36:26 serveerstertje kernel: [ 89.161784] Hardware name: MSI MS-7640/890FXA-GD70 (MS-7640) , BIOS V1.8B1 09/13/2010
> Jan 26 11:36:26 serveerstertje kernel: [ 89.172965] 0000000000000009 ffff88005f603838 ffffffff81acbcfa ffffffff822134e0
> Jan 26 11:36:26 serveerstertje kernel: [ 89.184156] ffff88005f603888 ffff88005f603878 ffffffff810bdf62 ffff880000000000
> Jan 26 11:36:26 serveerstertje kernel: [ 89.195186] 0000000000055ebe 00000000ffffffef 0000000000000200 ffff8800592ea098
> Jan 26 11:36:26 serveerstertje kernel: [ 89.206227] Call Trace:
> Jan 26 11:36:26 serveerstertje kernel: [ 89.217027] <IRQ> [<ffffffff81acbcfa>] dump_stack+0x46/0x58
> Jan 26 11:36:26 serveerstertje kernel: [ 89.227907] [<ffffffff810bdf62>] warn_slowpath_common+0x82/0xb0
> Jan 26 11:36:26 serveerstertje kernel: [ 89.238678] [<ffffffff810be031>] warn_slowpath_fmt+0x41/0x50
> Jan 26 11:36:26 serveerstertje kernel: [ 89.249336] [<ffffffff81471c5a>] ? active_pfn_read_overlap+0x3a/0x70
> Jan 26 11:36:26 serveerstertje kernel: [ 89.259904] [<ffffffff814729e3>] add_dma_entry+0x103/0x130
> Jan 26 11:36:26 serveerstertje kernel: [ 89.270416] [<ffffffff81472de6>] debug_dma_map_page+0x126/0x150
> Jan 26 11:36:26 serveerstertje kernel: [ 89.280840] [<ffffffff81714686>] rtl8169_start_xmit+0x216/0xa20
[r8169 and xen stuff]
Dan, I miss the part of the debug code that tells where the mappings were
previously set.
--
Ueimor
next prev parent reply other threads:[~2014-01-27 0:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-26 10:55 Sander Eikelenboom
2014-01-27 0:03 ` Francois Romieu [this message]
2014-01-29 3:06 ` Dan Williams
2014-02-06 11:36 ` Sander Eikelenboom
2014-02-06 13:09 ` Sander Eikelenboom
2014-02-06 14:26 ` Dan Williams
2014-02-06 14:27 ` Sander Eikelenboom
2014-02-06 19:12 ` Dan Williams
2014-02-07 10:21 ` Sander Eikelenboom
2014-02-11 19:56 ` Sander Eikelenboom
2014-02-11 21:28 ` Eric Dumazet
2014-02-11 22:53 ` Sander Eikelenboom
2014-02-12 22:52 ` Ben Hutchings
2014-02-12 2:07 ` Dan Williams
2014-02-12 4:17 ` Eric Dumazet
2014-02-12 14:56 ` Dan Williams
2014-02-13 20:14 ` Dan Williams
2014-02-13 21:49 ` Sander Eikelenboom
2014-02-25 17:45 ` Josh Boyer
2014-02-25 17:50 ` Dan Williams
2014-02-13 20:16 ` Dave Jones
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